/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

export type Reducer<T> = (state: T, payload: any) => T;

export type Routine<T> = (state: T, payload: any) => void;

export type CreateReducedStateProps<T> = {
  initialState: T;
  reducers: Record<string, Reducer<T>>;
  routines: Record<string, Routine<T>>;
};

export type ChangeListener<T> = (state: T) => void;

export type ReducedState<T> = {
  state: T;
  addChangeListener: (changeListenerToBeAdded: ChangeListener<T>) => void;
  removeChangeListener: (changeListenerToBeRemoved: ChangeListener<T>) => void;
};
